Rules Reference

Model Validation works by applying a set of validation rules to the selected object. These rules are arranged in groups.

Rule Groups

Group

Description

See also

Well-Formedness

The validator applies these rules to check whether or not an element, relationship, feature or diagram is well-formed; for example, whether the object is a valid UML item or whether a diagram contains valid elements within it.

As explained in Error Message Format, these rules generate messages with the codes:

The validator applies these rules to check whether or not a UML element contains valid children, whether it contains the right number of valid children, and whether or not the element is missing any required children.

The validator applies these rules to check whether or not the element, relationship or feature has the correct UML properties defined, and whether the properties contain incorrect or conflicting values.